Garbage-furnace.



No. 789,329. PATENTED MAY 9, 1905. E. J. LITTLE 6: D. 0.. SHAW.

GARBAGE FURNACE. APPLICATION FILED AUG.18, 1902.

2 SHEETS-SHEET 1.

WITNESSES:

nu/ck! WMZZ w No. 789,329. PATENTED MAY 9, 1905.

E. J. LITTLE & D. 0. SHAW.

GARBAGE FURNACE.

APPLIOATION FILED we. 18, 1902.

2 SHEETS-SHEET 2.

WITNESSES: g INQ/ENTORS I -4 a. 1. Q0

NITED STATES Patented May 9, 1905.

PATENT OFFICE.

EUGENE J. LITTLE AND DANIEL OOFF IN SILUV, OF TOLEDO, OHIO.

GARBAGE-FURNACE.

SPECIFICATION forming part of Letters Patent No. 789,329, dated May 9, 1905. Application filed August 18, 1902- Serial No. 120.0%.

To (all whom, it may concern.-

Be itknown that we, EUGENE J. LITTLE and DANIEL CoEnIN SHAW, citizens of the United States, residing at Toledo, in the county of Lucas and State of Ohio, have invented certain new and useful Improvements in Garbage- Furnaces; and we do declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, and to the figures of reference marked thereon, which form a part of this specification.

Our invention relates to garbage-furnaces;

and its object is to provide a furnace which shall be cheap, simple, and eflicient, which may be operated with a small amount of fuel and with little labor, and which will destroy the vapors and odors.

Our invention also consists in certain details of constructions hereinafter described, and pointed out in the claims.

We attain these objects by means of the devices and arrangement of parts hereinafter described, and shown and illustrated in the accompanying drawings, in which Figure 1 is a longitudinal central vertical sectional elevation of our furnace; Fig. 2, a vertical transverse sectional elevation of the same, taken on line a In, Fig. 1; Fig. 3, a like view taken on line :12 11/, Fig. 1; Fig. 4, a like View taken on line 1/ 2 Fig. 1; Fig. 5, a side elevation of our furnace; Fig. 6, a front end elevation of the same, and Fig. 7 a rear end elevation of the same.

Like numerals of reference indicate like parts throughout the drawings.

In the drawings, 1 1 are the side walls of the furnace, which walls meet'at top and form arch 2. The front end wall 3 and the rear end wall 4 complete the inclosure. Adjacent to the front wall is a cross-wall 5, and between these two walls is a smoke-chamber 6, which is in communication with a smoke-stack 7 8 is another cross-wall, between which and the wall 5 is a chamber 9. In the lower part of this chamber is a fireplace 1(), and in the upper part is a series of open-end horizontal tubes 10, formed of fire-clay or other refractory substance. These tubes at opposite ends pass through the walls 5 and 8 and are directly exposed to the action of the fires in the fireplace 10.

Between the cross-wall 8 and the rear end wall 4 is a series of grate-bars 11, which extend across from one side wall to the other. Near the rear end wall is a bridge-wall 12, which extends across from one side wall to the other, and between the bridge-wall and the rear end wall is a passage 13, which connects the space beneath the grate-bars 11 with the space above the bars. Through the wall 8 is an opening 14, which connects the fireplace with the space beneath the grate-bars 11.

Above the arch of the furnace is a platform 15. Through this platform and through the top of the arch leads a hopper 16, provided with a suitable closure 17. Above and below the grate of the fireplace are doors in the side walls for the introduction of fuel and the re moval of ashes. Doors through the side walls lead into the spaces above and below the gratebars, as shown. Through these doors the fires may be stirred and the ashes removed. A door 18 is also provided in the front end wall in line with the tubes 10. Through this door the tubes may be cleaned and renewed. On the inner faces of the side walls are formed ledges 19, upon which rest the ends of the grate-bars 11. (See Fig. 4.)

The operation of our furnace is as follows: A tire is built in the fireplace 10, the flame and products of combustion passing back beneath the grate-bars 11, up through passage 13, and forward over the top of the gratebars and out into the smoke-stack through the horizontal tubes 10. l/Vhen the furnace is sufficiently heated, the garbage or refuse to be destroyed is charged into the furnace through the hopper and door 16 17 onto the grate-bars, where it is subjected to the action of the heat and flames passing beneath and above and through the grate-bars. As the vapors and products of combustion pass through the pipes 1O (which being directly above the fireplace 10 are now intensely hot) they are reheated and burned at a very high temperature and the odors are thus destroyed.

It will be seen that the furnace here described is compact, cheap, easy of access in all its parts, and of high capacity, With small consumption of fuel.

Having described our invention, What we claim, and desire to secure by Letters Patent, 1s

1. In a furnace, a'horizontal grating, a fireplace at one end of the grating, horizontal tubes above and directly exposed to the fires in said fireplace, and passages which direct the products of combustion from said fireplace beneath and over the grating and through said horizontal tubes.

2. A primary furnace, 10, a garbage-furnace, a series of tubes of refractory material adjacent to and having their exteriors exposed to the fires in said primary furnace, and means for conducting the products of combustion of both said furnaces into and through said tubes.

In testimony whereof We hereto afiix our signatures in presence of tWo Witnesses.

EUGENE J. LITTLE. DANIEL COFFIN SHAW. Witnesses:

F. K. RHINEs,

A. J. HENDLEY. 

